tarantool / luajit / 30530159088

93%

tarantool/master: 93%

Build Type

push

github

Committed by Buristan

Commit Message

FFI: Shrink container of packed bitfield.

Reported by Huang Haiyang.

(cherry picked from commit e4c7d8b38)

The bitfield of packed structure uses the original type size, which
leads to heap-buffer-overflow access on conversions.

This patch fixes it by adjusting the size of the bitfield container when
necessary.

Sergey Kaplun:
* added the description and the test for the problem

Part of tarantool/tarantool#12880

Reviewed-by: Evgeniy Temirgaleev <e.temirgaleev@tarantool.org>
Reviewed-by: Sergey Bronnikov <sergeyb@tarantool.org>
Signed-off-by: Sergey Kaplun <skaplun@tarantool.org>
(cherry picked from commit 39b6b74ec)

Coverage Stats

5740 of 6060 branches covered (94.72%)

Branch coverage included in aggregate %.

2 of 2 new or added lines in 1 file covered. (100.0%)

8 existing lines in 2 files now uncovered.

21918 of 23559 relevant lines covered (93.03%)

3971475.34 hits per line